Caterpillar Introduces Hybrid Energy Storage Solution for Greater Fuel Savings and Emissions Reductions

Houston, Texas (February 26, 2024) – Caterpillar Oil & Gas today announced the launch of the Cat® Hybrid Energy Storage Solution to help drillers and operators cut fuel consumption, lower total cost of ownership (TCO) and reduce environmental impact in today’s oil and gas operations. The custom-designed energy storage system stores excess power from the job site and then discharges it as needed. In a hybrid system that combines the Cat Hybrid Energy Storage Solution and a gas genset, the transient response is even quicker than in conventional diesel-only rigs.

The Hybrid Energy Storage Solution incorporates the latest in genset controls, bidirectional power inverters (BDP) and microgrid master controllers (MMC) to boost fuel economy and reduce engine maintenance. This technology can be connected to a regional grid, providing backup power and peak shaving to increase reliability and reduce operating costs. Seamlessly integrating with multiple genset options and other power sources in parallel, the Hybrid Energy Storage Solution provides increased power output and/or increases energy capacity. The comprehensive fully autonomous solution ensures dependable power and transient response capability for reliable uptime as well as capital efficiency. This provides exceptional performance in the field by offering the flexibility to run on a wide variety of fuel types.

Engineered with a heavy-duty battery structure that provides vibration isolation, the Hybrid Energy Storage Solution is designed to protect against power failure, voltage sags/surges, and under/over frequency conditions. The system’s power dense battery paired with a Power Grid Stabilization Module, BDP and MMC are available on a heavy-duty ASTM D4169/3G loading mobile trailer designed for 3G shock load to withstand the oilfield’s harshest operating conditions. It satisfies UL1741 grid connector requirements and meets UL9540 container level safety standards. The Hybrid Energy Storage Solution has a proven track record in various industries and is now entering the oil and gas sector. It easily plugs into existing rig setups and can be adapted to accommodate evolving fuel requirements to help future-proof equipment. When paired with the Cat SMART Engine Management System (EMS), engines can be automatically added or removed to match rig demands.

Depending upon site configuration, the Hybrid Energy Storage Solution is proven to deliver up to 30% fuel cost savings with natural gas, 85% fuel cost savings with field gas and up to 80% reduction in NOx. CO2e reductions of up to 11% and 7% are possible with natural gas and field gas, respectively.*

“Our oil and gas expertise enables us to provide a dependable battery-powered hybrid solution that delivers the performance and fuel savings drillers and operators demand while reducing emissions,” said Matt O’Sullivan, General Manager, Oil & Gas Power Systems at Caterpillar Inc.

Learn more about the Hybrid Energy Storage Solution by visiting

*Comparison between 3512C (a) vs G3512/ESS
EPA Subpart C CO2e Emissions Calculation
DGE: Field Gas: $0.3, CNG $1.45
Diesel Gal: $2.5
NGL Gal: $1.5

Hybrid Energy Storage Solution

The Cat® Hybrid Energy Storage Solution is your answer for energy efficiency—saving you time and money while offering better fuel efficiency, consistent on-site performance and more.

Learn More
Hybrid Energy Storage Solutions
Hybrid Energy Storage Solutions

About Caterpillar Oil & Gas:

Caterpillar Oil & Gas, with headquarters in Houston, Texas, consolidates all the sales and service activities for Caterpillar Inc.’s oil and gas power solutions. Since the 1930s, Caterpillar has manufactured engines for the oilfield and today provides premier power solutions with outputs from 31 to 16,000 kW.  The sales and service network includes more than 2,100 dealer locations world-wide dedicated to support customers in the drilling, production, well service and gas compression segments. More information is available at:

About Caterpillar:

With 2022 sales and revenues of $59.4 billion, Caterpillar Inc. is the world’s leading manufacturer of construction and mining equipment, off-highway diesel and natural gas engines, industrial gas turbines and diesel-electric locomotives. For nearly 100 years, we’ve been helping customers build a better, more sustainable world and are committed and contributing to a reduced-carbon future. Our innovative products and services, backed by our global dealer network, provide exceptional value that helps customers succeed. Caterpillar does business on every continent, principally operating through three primary segments – Construction Industries, Resource Industries and Energy & Transportation – and providing financing and related services through our Financial Products segment. Visit us at or join the conversation on our social media channels at


©2024 Caterpillar. All Rights Reserved. CAT, CATERPILLAR, LET’S DO THE WORK, their respective logos, "Caterpillar Corporate Yellow", the "Power Edge" and Cat “Modern Hex” trade dress as well as corporate and product identity used herein, are trademarks of Caterpillar and may not be used without permission.


Trade Press Inquiries:
Danielle Foelber